Safe-boltwork.



G. BARTELS.

SAFE BOLTWORK.

APPLIOATION FILED JUNE 20, 1913.

1,078,818. Patented Nov. 18, 1913.

2 SHEETS-SHEET 1.

9% ingggllmw 2M Wi nes es Inventor j; \111 W U, 3 Attorney UNITED STATES FATE N 1 OFFICE.

CARL BARTELS, OF HAMILTON, OHIO, ASSIGNOR TO THE MOSLER SAFE COMPANY, OF NEW YORK, N. Y.

SAFE-BOLTWORK.

Specification of Letters Patent.

Patented Nov. 18, 1913.

Application filed June 20, 1913. Serial No. 774,739.

T 0 all whom it may concern Be it known that I, CARL BARTELS, a citizen of the United States, residing at Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Safe Boltwork, of which the following is a specification.

This invention pertains to safe bolt work and will be readily understood from the following description taken in connection with the accompanying drawings in which Figure 1 is a rear elevation of the back of a safe door, illustrated as being of round door type, fitted with an embodiment of my improved construction: Fig. 2 a section of a portion thereof, transverse to the plane of the door, in the plane of line b of Figs. 1 and 3: Fig. 3 a rear elevation of the heel of one of the bolts and its immediate accessories, the receiving gear sector appearing in vertical section in the plane of line 0 of Fig. 2: Fig. 4 a plan of one of the cranks and its supports, parts appearing in horizontal section in the plane of line d of Figs. 1, 5 and 6: Fig. 5 a vertical section of the keeper-ring, in the plane of line a of Figs. 2 and 4: and Fig. 6 a vertical section of the keeper-ring in the plane of line 6 of Figs. 2 and 4.

In the drawings :-1, indicates the backplate of a round door safe, which back-plate may be the door itself or the extra backplate secured to the rear of the door to carry the bolt-work: 2, an inner bolt-ring projecting from the rear of the back-plate, concentric with the circular back-plate: 3, an outer boltring projecting from the rear of the back-plate concentric with the first boltring: 4, bolts fitted to slide radially through the bolt-rings, of which bolts there are to be as many as deemed expedient, the illustration providing for twenty-four of the bolts, four only being shown in the drawing, the position of the remaining bolts being indicated by radial dotted lines: 5, shanks projecting inwardly from the inner ends of the bolts: 6, a notch in the edge of each shank: 7, a stud projecting rigidly from the rear face of the back-plate alongside each of the shanks: 8, a crank-disk mounted to turn on each stud: 9, a bearing-ring projecting rearwardly from the back-plate, concentric with the two bolt-rings and within the circle of the series of studs 7: 10, screw securing the bearing-ring firmly to the backplate: 11, a circular rabbet formed in the rear outer face of the bearing-ring; 12, an actuating ring journaled in the rabbet of the bearing-ring and projecting outwardly from the bearing-ring: 13, a gib-ring secured to the rear face of bearing-ring 9 and projecting over the rear face of the actuating ring: 14, screws serving to secure the gibring firmly to the bearing-ring: 15, notches in the outer edge of the actuating ring there being one of these notches in the neighborhood of each of studs 7 16, a crank pin, preferably in the form of an anti-friction roller, projecting forwardly from each of the crank-disks 8 and engaging its appropriate notch 15 in the actuating ring: 17 a similar crank-pin projecting forwardly from each of the crank-disks and engaging the notch 6 of the appropriate bolt-shank, these two crank-pins being disposed in their disks at an angle to each other of substantially ninety degrees: 18, a toothed sector rigidly secured to one of the crank-disks 8: 19, a pinion mounted for rotation on the baclcplate and gearing with the sector:- 20, a spindle by means of which the sector and the crank-disk to which it is attached may be turned: and 21, a second crank-disk mounted upon the stud which carries the crank-disk which is provided with the toothed sector, this particular crank-disk 8 and the crank-disk 21 and the toothed sector and the appropriate pair of crank-pins being rigidly united.

Considering the parts thus far referred to, the bolts are shown in their inward position, corresponding with the unlocked condition of the door. If, now, pinion 19 be turned in counter clockwise direction, as it appears in the drawings, it will bring about the partial rotation in clockwise direction of the particular crank-disk 8 to which the toothed segment is connected. This partial rotation of this particular crank-disk will cause its crank-pin 17 to shoot outwardly the particular bolt connected with this crankdisk thiS action serving in looking the door so far as that particular bolt is concerned. But while this particular crankdisk has thus moved and shot its individual bolt its crank-pin 16 has advanced and has caused actuating-ring 12 to turn in counter clockwise direction, the result of which movement is that the actuating ring turns all of the rest of the crank-disks and shoots all the rest of the bolts, the consequence being that the turning of pinion 19 moves all of the bolts simultaneously inwardly or outwardly according to the direction in which the pinion is turned. The pin and slot connections between the crank disks and the actuating ring and between the crank-disks and the shanks of the bolts is of a character to produce a smooth action, an action such as the locksmiths call sweet and there is a practical avoidance of the connections becoming clogged or rendered sluggish by accumulation of dust. The construction, as thus far referred to, is not peculiar to the present application.

Proceeding with the drawings :22, indicates a buttonhead formed on the rear end of each of the studs 7 and disposed rearwardly of the crank-disks 8: 23, a keeperring disposed over the rear ends of the circular series of studs: 24, a buttonhole formed in the front face of this keeper-ring at each of the studs, the forward portion of these button-holes having an opening of sufiicient size to admit the buttonheads of the studs and having a circumferential adjoining portion having a width less than the diameter of the buttonheads and adapted to engage the necks in front of the buttonheads, While the rear portions of the buttonholes are of a radial width, throughout their circumferential length, sufiicient to receive the buttonheads: and 25, a lock to secure the keeper-ring in adjusted angular position, this lock being illustrated as a screw passing edgewise into the keeper-ring and engaging a buttonhead when the neck of that buttonhead is in locking position in the narrow part of the buttonhole.

The keeper-ring when in active position in relation to the studs, as indicated in Figs. 1 and 5, prevents any possible rearward displacement of a crank-disk, and at the same time presents a smooth forward surface free from projecting screws or bolts and easily kept clean and nice. The screw 25 prevents the angular displacement of the keeper-ring, and it is my recommendation that more than one of these locking screws be employed as, for instance, one screw engaging the buttonhead of one stud, and another screw engaging the buttonhead at the diametrically opposite point in the keeper-ring. By thus duplicating the locking screws the accidental backing out of one screw will not release the keeper-ring. The screw or screws are to be looked upon as being merely a typical device for preventing the angular displacement of the keeper-ring.

In putting the keeper-ring in place the larger portions of the buttonholes are passed forwardly over the buttonheads and then the keeper-ring is to be given a slight turn until the necks in front of the buttonheads engage the narrow front portions of the buttonholes, after which the ring is to be locked against angular displacement.

I claim 1. Safe bolt-work comprising, a series of studs projecting rearwardly from the door, a buttonhead on the rear end of each stud, a keeper-piece disposed at the rear of the series of studs and having in its front face a buttonhole to engage each stud, a locking device to prevent the shifting of the keeperpiece along the series of studs, and bolt-operating mechanism mounted on said studs, combined substantially as set forth.

2. Safe bolt work comprising, a circular back-plate, bolt-rings concentrically disposed at the rear face of the back-plate, bolts adapted to slide radially through the bolt-rings, a circular actuating member mounted for movement at the rear of the back-plate concentric with the bolt-rings, a circular series of studs projecting rearwardly from the back-plate, mechanism mounted for rotary motion on the studs and operatively connected With the bolts and with the actuating member, a buttonhead on the rear end of each stud, a keeper-ring provided in its front portion with a buttonhole in engagement with each of said buttonheads, and a locking device to prevent the angular motion of the keeper-ring, combined substantially as set forth.

3. Safe bolt-work comprising, a circular back-plate, bolt-rings concentrically disposed at the rear face of the back-plate, bolts adapted to slide radially through the bolt-rings, a circular actuating member mounted for movement at the rear of the back-plate concentric with the bolt-rings, a circular series of studs projecting rearwardly from the back-plate, mechanism mounted for rotary motion on the studs and operatively connected with the bolts and with the actuating member, a buttonhead on the rear end of each stud, a keeper-ring provided in its front portion with a buttonhole in engagement with each of said buttonheads, and a screw entering the keeper-ring edgewise and having its point in engagement with one of the buttonheads when the buttonheads are in active keeping position in the button-holes, combined substantially as set forth.

CARL BARTELS.

Witnesses:

M. S. BELDEN, WILLIAM J. KLINGLER, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

